5 stars (The Perfect Study Aid) - Cliffs AP is the perfect study aid for the AP Biology Exam. It covers all the material you need to know for the exam, at the level of specificity expected. At the end of each chapter there are questions that are similar to those you would encounter on the AP exam and an explanation given for each answer. Also possible essay questions from each section are given with a detailed summary of what information is important. If you know everthing in this book it is very easy to obtain a 5, just like I did. *Note that the exam has changed and there are 100 multiple choice questions and not 120 as mentioned in the guidebook. 5 stars (An absolutely amazing review.) - Just go and buy it. The other books in the contest aren't even worth talking about. If its in this book, it might be on the AP test. It's also a godly review for regular tests. 5 stars (Great AP Bio book-- Not just for review, but it can teach too) - This is a great AP Bio book--all the information is plainly laid out, along with practice questions at the end of each topic. It really helped on free-response. This book will help on SATII bio too--seriously. I just wish I had gotten this earlier in the year so I could have really studied everything more in-depth instead of just skimming (my class completely skipped plants and kingdoms), but I was still able to get a 5. I credit this book for that. ... Cliffs Notes :: Study Aids & Advanced Placement :: Biology :: Life Sciences :: Science&Mathematics :: Life Sciences - Biology - General :: Examinations :: questions :: etc :: Examina :: Biology (Cliffs AP)